Butt gauge



May 18 N. C. WELLS BUTT GAUGE Filed May 5.- 1924 Patented May 18, 192%.

reer NEWTON .C. WELLQ OF LOS ANGELES, CALIFORNIA.

BUTT GAUGE.

Application filed. May 5,

My invention-relates to butt gauges and consists of the novelfeatures hereinshown, described and claimed;

The objects and advantages will appear from the drawings specification.

The drawings illustrate the construction and operation of a butt gauge embodying the principles. ofmy invention.

Figure- 1 shows a top plan view of the butt gauge and the operation of making working lines on-the edgecf a door as viewed-in the direction of the arrow 1 in Fig. 2.

Fig. 2 is ahorizontal section. on" the line 2-2 of Fig. 1 and looking downwardly, thus showing the door in section and the gauge in side elevation.

Fig. 3 is a vie-wanalogous to Fig. 1 and showing the operation-of scribing a depth line on the face of the door as viewed in the direction of the arrow 3 in Fig. 4.

4- is a sectionalview analogous to Fig. 2 and taken-on the line 11 oi Fig. 3 and looking in the direction indicated by the arrows and showing in elevation theoppositeside of the gauge. 7

is azview, showing-the use of the secondary scriber.-

Fig. -6 is a bottom plan-view upon-an-enlarged scale as indicated by the arrows 6-in Figs. iand 7, parts beingshown in section.

Fig. 7 "is a vertical cross sectional detail on-the line 7-7 of 6 and right side up as indicated by-the line 7 in Fig. 1, with the door omitted.

Fig. 8 is a fragmentaryperspective of the edge of a door'and showing the working lines for applying a hinge to the door, the lines being made by-the use of my gauge.

The details of the construction and operation of the butt gaugeshown in the draw ings as "follows:

The central main frame 1 consists of a flat top 2 and parallel sides 3 and 4 extending downwardly at right angles from the edges of the top'2. Theycentral longitudinal marking membert is bent downwardly from the forward end of the top 2 ina plane at riglit angles to the sides 3 and'e and has a marking edge 6 4 Fig. 7 extending slightly below the edges'o'f the sides 3 and l. The top 2, the sides 3 and at, the marking member and the edge 6, are all formed integral from heavy sheet-metal and the marking member- 5 extends-entirely acrossythe sheet of metal and the sides 3 and 4: are-bent inwardly-from 192&. Serial No. 711,147.

the same edges that form the-ends of the mark1ng member, thus making curves 7 and 8 connecting the sides 3 and a to the ends of the marking member.

The abutment member 9 (Fig. 7) comprises a central bottom plate 10 fitting against the lower edges of the sides 3 and i with lugs 11, 12, 13 and 1% turned upwardly atthe the forward edge of the plate lOin-a plane parallel-with the marking member 5.

is to beused the forward tace oi the mar-k- An adjusting screw 16 is mounted through a longitudinal slot 17' formed inthe-top 2 and screw threaded through the plate 10, and has a bearing head 18 engaging the top 2 so that by loosening the screw 16 the abutment may lie-moved towards or away from the marking member 5.

The primaryscriber 19 is formed upon the forward end "of a flat bar 20 which-slides through an opening in the marking member 5 and fits upwardly against the top 2, and an adjustin screw21 is inserted through a slot 22 in the top 2 and tapped through'the bar 20 so that by manipulating the screw 21 the scriber 1 9 may be-moved to or from the marking member 5, and when the scriber ing member 5 forms a guide or an abutment witlrrel-ation towhich the scribed 19 is adjusted. The edge of the scriber 19 is parallel with the forward face of the marking.member 5 and some distance above the marking edge 6 so to be out of the way when the marking edge is used.

The parallelbars 23 and 2% are slidingly mounted through apertures in the sides 3 and The transverse marking member assen-iblies 25 and '26 are mounted upon the ends of the bars ane 24, one on each side of the mainframe 1.

The details of the transverse marking assembly 25 are as follows:

A piece of heavy sheet metal is bent to form the top 27' 6) and the sides 28 and 29, and the clamping screw30-is mounted in the channel against the lower face of the top 27 between the sides 28 and 29 and has a transverse slot forming a clamping shoulder 31 and a screw threaded outeren d 32. The bar 23 is slidingly mounted through the sides 28 and 29 and has a retaining head 33 upon its outer end. The bar 24 is slidingly mounted through the sides 28 and 29 and in the notch against the shoulder 31, and has a retaining head 8st upon its outer end. A washer is mounted upon the screw threaded end 32 against the ends of the top 27 and sides 28 and 29 and an adjusting nut 36 is mounted upon the screw threaded end 32 against the washer so that by loosening the nut 36 the member may be moved upon the bar it, and by tightening the screw 36 the shoulder 31 will engage the bar 24. and hold the assembly 25 rigid upon the bar. The side 29 is cut short at its forward end and the top 27 is cut upon the line 37 so that the line 3? will clear the line 7 and the forward end of the side 28 extends in the plane of the marking member 5. and the end face 38 of the side 28 serves as a locater for the gauge in some of the operations.

The details of the transverse marking assembly 26 are as follows:

A piece of heavy sheet metal is bent to form the top 39 and the sides & and -11. The clamping screw 42 fits in the channel against the lower face of the top 39 between the sides and a l and has a slot forming a shoulder 48. The bar 23 extends loosely through the sides a0 and all and through the slot and against the shoulder A secondary scriber 4A is formed on the outer end of the bar 23. A second clearance slot is formed across the screw 42 and the bar 24 extends through the sides 10 and 4:1 and loosely through the clearance slot 45,

- and is secured rigidly in place by a headed pintle 46 on the outer end and in the side 11. A washer l? fits against the ends of the top 39 and sides 40 and 4:1 and a nut 48 is screw seated upon the screw 42 against the washer l7 so that by loosening the nut 48 the assembly 26 may be moved upon the bar 2 to ad just the distance between the edge of the scriber 4A and the outer face of the side 11. lVhen the secondary seriber is to be used, the side -11 serves as an abutment. By manipulating the nuts 36 and 48 the assemblies and 26 may be adjusted to and from each other. The side is cut short at its forward end and the top 39 is cut on the line e9 to clear the line 8, and the forward end 50 of the side 41 extends in the plane of the marking member 5 to the same extent as the edge 38, and serves as a locater or as bearings for some of the operations.

hen the assemblies 25 and 26 are bearing upon a door or the like, the central frame 1 and all the parts carried thereby may be moved back and forth upon the bars and 24 to the limit of the space between the assemblies 25 and 26.

The sharp edges 51 and 52 of the sides 28 and 41 extend below the edges of the sides 29 and 40 and are beveled to form markers and are in the same level as the edge of the marking membe In handling the gauge for adjustment and the like, the faces shown in Figs. 1, 3 and 5 form the top of the gauge.

Referring to Figs. 1 and 2, the gauge ha been adjusted to fit a hinge leaf which is to be applied to the door 53 (Fig. 8) and the gauge is applied to the door with the abutment 15 against a side face of the door and with the marking edges 6, 51 and against the edge face of the door, and the gauge may be tapped with a hammer, one blow of the hammer hitting the marking assembly 26 and making the transverse mark 5st, and another blow hitting the marking assembly 2., and making the transverse mark 55. A third blow of the hammer will hit the top 2 near the marking member 5 and make a part. of the longitudinal line 56. The main frame l should be moved against the assembly 20 to make the upper part of the line 56 and against the assembly and making the lower part of the line 56.

Referring to Figs. 3 and '1", the scriber 19 is adjusted to the depth of the hinge memher and the gauge is turned to bring the marking member 5 against the edge face of the door and the scriber 19 against the side face of the door, and the locaters 3S and 50 are pressed against the edge face of the door at the marks 5%- and and the assemblies and 26 pressed against the edge of the door while the main frame 1 is reciprocated upon the bars 23 and 2% with the marking member 5 serving as an abutment, and the scriber 19 bearing upon the face of the door to make a part of the line 57. This gives a straight start in making the line, and the line may be finished by any suitable manipulation or left unfinished.

Referring to Fig. 5, the secondary scribe!- 1-4 has been adjusted relative to the outer face of the side a1 of the assembly 26 to make a line 58 at the center of the edge of the door 59 to form a starting point from which to lay off the lock mortise.

Various other operations will be obvious to a person familiar with placing hinges and locks upon doors and the like.

Various changes may be made without departing from the spirit of my invention as claimed.

I claim:

1. In a butt gauge, a main frame comprising a flat top portion and parallel side portions extending downwardly at right angles from the edges of the top portion the forward end of the top portion being laterally expanded, and a marking member extending downwardly from said forward end at right angles to the sides and longer than the width of the main portion of the top.

2. In a butt gauge, a main frame comprising a flat top portion having a longitudinal slot and parallel side portions extending downwardly at right angles from the edges of the top portion, the forward end of the top portion being laterally expanded, a marking member extending downwardly from said forward end at right angles to the sides and longer than the width of the main portion of the top, and an abutment member comprising a central bottom plate fitting against the lower edges of the sides and having a screw-threaded aperture, an abutment extending downwardly from the for ward edge of the bottom plate in a plane parallel with the marking member and an adjusting screw mounted through the longitudinal slot formed in the top and the screw threaded aperture in the bottom plate so that the abutment may be moved toward or away from the marking member.

8. In a butt gauge, a main frame comprising a flat top portion with a slot therein, and parallel side portions extending downwardly at right angles from the edges of the top portion, the forward end of the top portion being laterally expanded, a marking member extending downwardly from said forward end at right angles to the sides and longer than the width of the main portion of the top and having an opening at the end of the marking member, a flat bar extending through the opening and having a scriber formed on one end and having a screw threaded aperture adjacent the other end and an adjusting screw fitting through the said slot and screw threaded aperture in the bar whereby the scriber may be adjusted with reference to the marl;- ing member.

in a butt gauge, a main frame, parallel bars slidingly mounted through the main frame, side marking assemblies adjustably mounted upon the parallel bars, one on each side of the frame, each of said assemblies comprising a top, sides extending clownwardly from the top and forming therewith a channel, an adjusting screw mounted in the channel and having a slot, said bars extending through the sides, one of the bars extending through the slot in the adjusting screw, and a nut upon the adjusting screw for gripping the bar in the slot.

In testimony whereof I have signed my name to this specification.

NEWTON O. WELLS. 

